1. Breast health care The breasts gradually become bigger and heavier during pregnancy, and if they are allowed to develop without care, they will make the breast tissue loose and the mammary glands develop abnormally. A suitable bra can be used to support the breasts. The type of bra should not be too oppressive to the nipple, nor affect the blood circulation of the breasts as a principle, such as the use of wider back straps of the large size of the bra, so that people can not feel the weight of the breasts, but also to the nipple is not oppressive. When sleeping or resting, the bra should be removed, which is good for breathing and blood circulation of the mammary glands. At the same time, attention should be paid to preventing trauma to the breasts, squeezing and infection. If you find redness, swelling and hard lumps in your breasts, you should apply warm compresses and massage them in time. 2, nipple health care First-time pregnant people, nipple skin is very delicate, sensitive, often can not withstand the repeated sucking of the baby later stimulation, breastfeeding will feel strange itch or pain. In order to overcome this phenomenon, from 5 to 6 months of pregnancy to scrub the nipple once a day with warm water, wipe off the nipple on the accumulated secretions of dry scabs, and then apply some grease, can increase the toughness of the skin and the tolerance of stimulation to prevent breastfeeding nipple cracking. In the second half of pregnancy, the nipples should be washed frequently with warm water to keep the nipples clean and promote nipple skin aging and thickening of the stratum corneum, which is good for preventing the occurrence of gestational mastitis. The nipple is too short, or even concave, or the nipple has cracked pregnant women, should be used early nipple correction method, correction can be started from the I7 weeks of pregnancy, the method is as follows: (1) pull out the nipple, stay for a few moments, several times a day. If the nipple is difficult to pull out, can be pressed around the areola, after pulling out the nipple can be rubbed according to the nipple protection method. (2) Wash your hands first, put a finger on each side of the nipple, first up and down, then gently pull the areola skin and the tissues underneath it in the opposite direction, repeat, 2 times a day, 5 minutes each time. When breastfeeding, the index finger of the middle finger can be used to press the areola in order to make the nipple convex and create good conditions for the baby to suck the breastmilk. (3) If the above methods fail to correct the problem, a nipple aspirator can be used to suck out the nipple. No attractor can be used when a pair of syringes connected to a small section of skin tube, skin tube connected to the small mouth of the bottle of eye drops, large mouth against the nipple, syringe pumping negative pressure can be sucked out of the nipple to maintain a certain period of time, do 2 times a day. Using the above method to pull out the nipple may cause contractions, the uterus sensitive, frequent contractions of pregnant women, or pregnant women with a history of repeated miscarriages, preterm labor should pay special attention. (4) Open the milk ducts. In order to make the mammary ducts open and the milk flow smoothly, the colostrum (i.e. a small amount of thin milk secreted by the breasts before formal lactation) should be squeezed out from the 32nd week of pregnancy, and doing so in advance can prevent the occurrence of problems such as depressing breasts, nipple cracks, and insufficient milk secretion. However, it is important to watch out for uterine contractions and, if necessary, to stop or postpone the process.